Conceptual design of the heavy ion beam probe diagnostic for the T-15MD tokamak

The conceptual design of the heavy ion beam probe (HIBP) for T-15MD tokamak (R = 1.5 m, a = 0.67 m, Bt = 2 T, Ipl = 2 MA) is presented. The location of the HIBP injection and detection points is chosen based on the probing beam trajectory calculations. Observation area covers the whole radial interval 0 < r < a for Bt = 1 T, Ipl = 1 MA with the beam energy Eb <260 keV for Tl+ probing ions. It allows to measure two-dimensional maps of plasma parameters in an area which covers a large fraction in the upper right quarter of the plasma cross-section. In order to provide the measurements in a wide range of plasma density, high intensity long-focusing probing beam is needed. To develop such a beam a high voltage test bench is designed. It will allow to study the ion-optics system of the HIBP injector and the properties of the thermionic emitters and their lifetime.

[1]  A. Melnikov,et al.  Probing ion trajectory simulations for the HIBP diagnostics at the T-15MD tokamak , 2019, Journal of Physics: Conference Series.

[2]  Á. Cappa,et al.  Density profile reconstruction using HIBP in ECRH plasmas in the TJ-II stellarator , 2019, Journal of Instrumentation.

[3]  A. Molinero,et al.  Heavy ion beam probe design and operation on the T-10 tokamak , 2019, Fusion Engineering and Design.

[4]  A. Melnikov.  Electric Potential in Toroidal Plasmas , 2019, Springer Series in Plasma Science and Technology.

[5]  L. Eliseev,et al.  Evaluation of Turbulent Particle Flux by Heavy Ion Beam Probe in the T-10 Tokamak , 2018, Plasma and Fusion Research.

[6]  A. Molinero,et al.  Heavy ion beam probing—diagnostics to study potential and turbulence in toroidal plasmas , 2017 .

[7]  I. Calvo,et al.  Observation of Oscillatory Radial Electric Field Relaxation in a Helical Plasma. , 2016, Physical review letters.

[8]  H. Igami,et al.  2D spatial profile measurements of potential fluctuation with heavy ion beam probe on the Large Helical Device. , 2016, The Review of scientific instruments.

[9]  A. Melnikov,et al.  The upgraded heavy ion beam probe diagnostics on the T-10 tokamak , 2016 .

[10]  V. Mukhovatov,et al.  Physical program and diagnostics of the T-15 upgrade tokamak (brief overview) , 2015 .

[11]  A. V. Melnikov,et al.  Control and data acquisition for dual HIBP diagnostics in the TJ-II stellarator , 2015 .

[12]  C. Hidalgo,et al.  Two Point Correlation Technique for the Measurements of Poloidal Plasma Rotation by Heavy Ion Beam Probe , 2012 .

[13]  D. Demers,et al.  Heavy ion beam probe advances from the first installation of the diagnostic on an RFP (invited). , 2012, The Review of scientific instruments.

[14]  L. G. Eliseev,et al.  Internal measurements of Alfvén eigenmodes with heavy ion beam probing in toroidal plasmas , 2010 .

[15]  L. G. Eliseev,et al.  Experimental progress on zonal flow physics in toroidal plasmas , 2007 .

[16]  M. Yokota,et al.  6 MeV heavy ion beam probe on the Large Helical Device , 2006 .

[17]  S. E. Lysenko,et al.  Investigation of geodesic acoustic mode oscillations in the T-10 tokamak , 2006 .

[18]  S. E. Lysenko,et al.  Plasma Potential Measurements by the Heavy Ion Beam Probe Diagnostic in Fusion Plasmas: Biasing Experiments in the TJ-II Stellarator and T-10 Tokamak , 2004 .

[19]  A. Wootton,et al.  Ballooning characteristics in density fluctuations observed with the 2 MeV heavy ion beam probe on the TEXT-U tokamak , 1996 .

[20]  A. Melnikov,et al.  HIBP diagnostics on T‐10 , 1995 .

[21]  M. Sasao,et al.  A 6MeV Heavy Ion Beam Probe for the Large Helical Device , 1994 .

[22]  K. Connor,et al.  Heavy ion beam probe energy analyzer for measurements of plasma potential fluctuations , 1987 .